File operation device and method and corresponding digital processing equipment and digital processing system

The invention discloses a file operation device and method, digital processing equipment provided with the device, and a digital processing system formed by the digital processing equipment. The file operation device is used for performing copy/paste operations between local digital processing equipment and external digital processing equipment, and comprises a monitoring module monitoring copy/paste operations in the local digital processing equipment, an information module for sending/receiving information with the external digital processing equipment, a file operation module for performing copy/paste operations in the local digital processing equipment, and a communication module for realizing data communications between the two sets of digital processing equipment. According to file operation device and the method and the corresponding digital processing equipment and the digital processing system, a user can perform copy/paste operations in any two peer devices, and the operations are more real and fit with original operation habits, so that any change is not required.